Montana is in one of the worst droughts in Montana history. As of December 15th, every county in the Treasure State was identified as experiencing some level of drought. A third of the state is in the grips of a “D4” or “exceptional” drought a designation the U.S. Department of Agriculture expects to occur in any one location just once every 50 to 100 years. The entire state is on average 4.66 inches behind in annual precipitation. The only years that have been drier were 1919, 1931 and 1952.